kernel/arch/arm/include/asm/mach/irq.h, branch linux-6.2.y

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

2019-06-19T15:09:55Z

Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Enrico Weigelt Reviewed-by: Kate Stewart Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman

genirq: Remove irq argument from irq flow handlers

2015-09-16T13:47:51Z

Most interrupt flow handlers do not use the irq argument. Those few which use it can retrieve the irq number from the irq descriptor. Remove the argument. Search and replace was done with coccinelle and some extra helper scripts around it. Thanks to Julia for her help! Signed-off-by: Thomas Gleixner Cc: Julia Lawall Cc: Jiang Liu

arm: Move chained_irq_(enter|exit) to a generic file

2013-03-26T16:11:43Z

These functions have been introduced by commit 10a8c383 (irq: introduce entry and exit functions for chained handlers) in asm/mach/irq.h. This patch moves them to linux/irqchip/chained_irq.h so that generic irqchip drivers do not rely on architecture specific header files. Signed-off-by: Catalin Marinas Tested-by: Marc Zyngier Cc: Russell King Cc: Thomas Gleixner Cc: Rob Herring

arm: Move the set_handle_irq and handle_arch_irq declarations to asm/irq.h

2013-03-26T16:11:20Z

This patch prepares the removal of include in the GIC and VIC irqchip drivers. Signed-off-by: Catalin Marinas Tested-by: Marc Zyngier Cc: Russell King Cc: Thomas Gleixner Cc: Rob Herring

arm: add set_handle_irq() to register the parent IRQ controller handler function

2013-01-10T17:44:38Z

In order to allow irqchip drivers to register their IRQ handling function as the parent IRQ controller handler function, we provide a convenience function. This will avoid poking directly into the global handle_arch_irq variable. Suggested by Arnd Bergmann. Signed-off-by: Thomas Petazzoni [Rob Herring: remove warning. 1st one to initialize wins.] Signed-off-by: Rob Herring Acked-by: Olof Johansson

ARM: fiq: change FIQ_START to a variable

2012-07-01T13:59:19Z

The commit a2be01b (ARM: only include mach/irqs.h for !SPARSE_IRQ) makes mach/irqs.h only be included for !SPARSE_IRQ build. There are a nubmer of platforms have FIQ_START defined in mach/irqs.h for FIQ support. arch/arm/mach-rpc/include/mach/irqs.h:#define FIQ_START 64 arch/arm/mach-s3c24xx/include/mach/irqs.h:#define FIQ_START IRQ_EINT0 arch/arm/plat-mxc/include/mach/irqs.h:#define FIQ_START 0 If SPARSE_IRQ is enabled for any of these platforms, the following compile error will be seen. arch/arm/kernel/fiq.c: In function ‘enable_fiq’: arch/arm/kernel/fiq.c:127:19: error: ‘FIQ_START’ undeclared (first use in this function) arch/arm/kernel/fiq.c:127:19: note: each undeclared identifier is reported only once for each function it appears in arch/arm/kernel/fiq.c: In function ‘disable_fiq’: arch/arm/kernel/fiq.c:132:20: error: ‘FIQ_START’ undeclared (first use in this function) The patch changes fiq code to have init_FIQ take FIQ_START from platforms as a parameter and assign it to variable fiq_start which is to replace FIQ_START uses in enable_fiq/disable_fiq. Signed-off-by: Shawn Guo Cc: Kukjin Kim Cc: Sascha Hauer Cc: Rob Herring Acked-by: Russell King

ARM: 6806/1: irq: introduce entry and exit functions for chained handlers

2011-03-15T09:42:28Z

Some chained IRQ handlers are written to cope with primary chips of potentially different flow types. Whether this a sensible thing to do is a point of contention. This patch introduces entry/exit functions for chained handlers which infer the flow type of the primary chip as fasteoi or level-type by checking whether or not the ->irq_eoi function pointer is present and calling back to the primary chip as necessary. Other methods of flow control are not considered. Acked-by: Thomas Gleixner Acked-by: Catalin Marinas Signed-off-by: Will Deacon Signed-off-by: Russell King

Merge branch 'smp' into misc

2011-01-06T22:32:03Z

Conflicts: arch/arm/kernel/entry-armv.S arch/arm/mm/ioremap.c

ARM: simplify early machine init hooks

2010-12-24T09:49:51Z

Rather than storing each machine init hook separately, store a pointer to the machine description record and dereference this instead. This pointer is only available while the init sections are present, which is not a problem as we only use it from init code. Signed-off-by: Russell King

ARM: 6532/1: Allow machine to specify it's own IRQ handlers at run-time

2010-12-24T09:47:34Z

Normally different ARM platform has different way to decode the IRQ hardware status and demultiplex to the corresponding IRQ handler. This is highly optimized by macro irq_handler in entry-armv.S, and each machine defines their own macro to decode the IRQ number. However, this prevents multiple machine classes to be built into a single kernel. By allowing each machine to specify thier own handler, and making function pointer 'handle_arch_irq' to point to it at run time, this can be solved. And introduce CONFIG_MULTI_IRQ_HANDLER to allow both solutions to work. Comparing with the highly optimized macro of irq_handler, the new function must be written with care not to lose too much performance. And the IPI stuff on SMP is expected to move to the provided arch IRQ handler as well. The assembly code to invoke handle_arch_irq is optimized by Russell King. Signed-off-by: Eric Miao Acked-by: Nicolas Pitre Signed-off-by: Russell King